R2S12-1505/H

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R2S12-1505/H Application Field and Working Principle

DC-DC converters are widely used for power conversions, particularly in the areas of power electronics and telecommunication systems. DC-DC converters are used to directly or indirectly convert an input voltage to a different output voltage. Commonly used converters include buck converters, boost, or inverting converters. The R2S12-1505/H is a type of DC-DC converter that is specifically designed for telecommunication systems.

The R2S12-1505/H is a 48 VDC input to 12 VDC, 5 A output DC-DC converter, offering high efficiency and cost-savings when compared to traditional circuits. It is specifically designed for telecom applications and has a wide input voltage range of 18 VDC – 75 VDC. This converter also features active switching frequency control, overvoltage protection, overcurrent protection, and short-circuit protection.

Working Principle
The R2S12-1505/H DC-DC converter operates according to the buck topology. This means that the input voltage is stepped down to the output voltage through a series of steps. An inductor is used to store a current, and a capacitor is used to store a voltage. During the cycle, an internal high-side switch and low-side switch are controlled by a Pulse-Width Modulation (PWM) signal. The output voltage can be regulated by adjusting the PWM frequency.

The input is stepped down by the action of an inductor and capacitor. When the high-side switch is closed, current into the inductor builds up. When this switch opens, the stored energy in the inductor forces current to flow into the capacitor and the output rails. The low-side switch is then activated to complete the cycle. The output voltage is regulated by adjusting the ratio of on-time to off-time of both switches using the PWM signal.

The R2S12-1505/H DC-DC converter is a reliable high-performance power solution for telecommunication applications. It offers a wide input voltage range, high efficiency, overvoltage protection, as well as overcurrent and short-circuit protection. The efficient buck topology used to step down the voltage ensures reliable performance and cost savings in comparison to traditional circuits.

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